IN seeing them all using it, I had already thought of doing it with mulitple stations.. The base is 2 ft X 2 ft so there is room enough but the orginal idea was for Amy and something that would NOT tip over if she fell and discourage her from using it. Could do multiple stations, 2 stories, open on the ends (for light) for multiple cat houses because even with 4 cats, I have 4 feeding bowl scattered about the kitchen and 2 large water bowls and that would keep it all in one area, the mess to one area and the idea snoballs!!!

Catmandu, your idea is a terrific!!